Verts and sunroofs can be trouble free ! This is a problem that can be fixed, it just seems like GM is not really taking the time to fully write up the fix for the dealerships and trim shops to fix properly.
Even a Coupe has a lot of stuff that can go wrong, I know I have one. I wouldn't give up all the great stuff my 2011 vert has over my 69 vert !
Love the car, just hate the top problem.